diff --git a/.github/workflows/deploy.yaml b/.github/workflows/deploy.yaml
index fb8cbe5a1..bdbda5e97 100644
--- a/.github/workflows/deploy.yaml
+++ b/.github/workflows/deploy.yaml
@@ -34,3 +34,5 @@ jobs:
       with:
         github_token: ${{ secrets.GITHUB_TOKEN }}
         publish_dir: ./public
+        cname: book.rymcg.tech
+